Analysis of Anisotropic Strength and Wellbore Unstable Zone in Shale Formation Relating to Water Content

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.004a.svgz" name="1444009.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Group of dry samples</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.004b.svgz" name="1444009.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Group of samples soaking in water for 24 h</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2023/1444009/figures/1444009.fig.004c.svgz" name="1444009.fig.004c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Group of samples soaking in water for 48 h</td></tr></table>

<div>Experimental data with different moisture content fit by plane of weakness model.</div>

Geofluids

fig4

Figure 4

Figure 4: Analysis of Anisotropic Strength and Wellbore Unstable Zone in Shale Formation Relating to Water Content 